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there are 27 students in the party than 3x the students come how many are there?

Carly and rob combined their Pokémon together. Now they have 42 Pokémon altogether. Carly had 4 more Pokémon than rob. How many Pokémon did Carly have?

Describe the preparation of 100 ml of 6.0 M HCI from a concentrated solution that has density of 1.18 and is 37 % ( w / w ) HCI ( 36.5 g / mol ) .?

Calculate the analytical and equilibrium molar concentrations of the solute species in an aqueous solution that contains 285 mg of trichloroacetic acid , CI3CCOOH ( 163.4 g / mol ) in 10 ml ( the acid is 73 % ionized in water )